Network Security Administrator Jobs in Hoffman Estates, IL

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Network/Systems Administrator

Chicago, IL
onsite
Temporary / Contract
42 - 55 USD / Hourly
We are looking for a Network/Systems Administrator to provide onsite support for core infrastructure operations in Chicago, Illinois. This Long-term Contract position focuses on keeping server, virtualization, storage, and network environments stable, secure, and well maintained while partnering with technical teams to resolve issues efficiently. The ideal candidate brings practical experience across VMware, Cisco networking, enterprise storage, and physical cabling, along with a dependable, hands-on approach to day-to-day infrastructure support. Responsibilities: • Manage virtual infrastructure by supporting VMware hosts, clusters, virtual machines, and associated platform components. • Track system health, investigate performance concerns, and carry out scheduled maintenance such as patching, upgrades, backups, and operational checks. • Provide administration for enterprise storage platforms, including monitoring utilization, addressing connectivity issues, and assisting with performance tuning. • Configure and troubleshoot Cisco network equipment, including switch ports, VLAN assignments, and general LAN connectivity. • Install and maintain copper and fiber cabling by tracing lines, labeling connections, organizing runs, and resolving physical network issues. • Perform hardware deployment tasks such as rack installation, equipment replacement, and upkeep of server rooms or network closets. • Diagnose infrastructure problems affecting servers, storage, network services, and user connectivity, escalating complex issues when needed. • Keep technical records current by updating diagrams, asset inventories, procedural documentation, and change history. • Follow established security standards, operational procedures, and change-control practices while coordinating with infrastructure, security, application, and support teams.
2026-10-28T00:00:00Z

Cyber Security Analyst

Lisle, IL
onsite
Permanent / Full Time
80000 - 90000 USD / Yearly
We are looking for a Cyber Security Analyst to strengthen and support a modern, Microsoft-focused technology environment. This role blends security operations, risk awareness, and end-user support, making it ideal for someone who can investigate threats, improve protective controls, and communicate clearly with both technical and nontechnical teams. The successful candidate will help safeguard enterprise systems, customer-facing platforms, and connected third-party services while contributing to a collaborative, service-oriented IT organization. Responsibilities:• Monitor security events across enterprise tools, investigate suspicious activity, and escalate or resolve incidents in a timely manner.• Administer and optimize cybersecurity platforms used for threat detection, vulnerability management, identity protection, endpoint defense, and secure access.• Partner with IT and business teams to coordinate remediation efforts for vulnerabilities, configuration gaps, and other identified security risks.• Support incident response activities by documenting findings, tracking actions, and helping contain and recover from security events.• Assist with audit preparation, compliance evidence gathering, and security readiness efforts related to internal and external assessments.• Provide practical guidance to employees on phishing awareness, secure behavior, and day-to-day cybersecurity best practices.• Contribute to support tickets when security expertise is needed, working across service levels to help resolve user and system issues.• Review and maintain protections related to firewalls, remote access, email security, and endpoint configurations across the environment.
2026-10-19T00:00:00Z

AI Network Architect

Chicago, IL
onsite
Permanent / Full Time
175000 - 200000 USD / Yearly
We are seeking an experienced Network Architect to design, optimize, and future-proof our enterprise network environment with a strong focus on scalability, security, performance, and readiness for emerging AI-driven technologies. This role requires deep expertise in Cisco architecture, advanced routing and switching, and modern network design principles to support a growing and evolving business. Based on general knowledge. Key Responsibilities<ul><li>Design and lead enterprise network architecture across LAN, WAN, wireless, data center, and cloud-connected environments. Based on general knowledge.</li><li>Develop network strategies that support AI futureproofing, including scalable bandwidth, low-latency design, resilient connectivity, and infrastructure readiness for automation and data-intensive workloads. Based on general knowledge.</li><li>Lead architecture standards, roadmaps, and modernization initiatives across core networking platforms. Based on general knowledge.</li><li>Serve as the subject matter expert for Cisco-based environments, including routing, switching, security, SD-WAN, and wireless technologies. Based on general knowledge.</li><li>Evaluate current network performance, identify gaps, and recommend improvements for capacity, resilience, and operational efficiency. Based on general knowledge.</li><li>Partner with infrastructure, security, cloud, and application teams to ensure integrated and secure network solutions. Based on general knowledge.</li><li>Design high-availability and disaster recovery network solutions to support business continuity. Based on general knowledge.</li><li>Guide implementation teams on best practices, configuration standards, and troubleshooting for complex network initiatives. Based on general knowledge.</li><li>Maintain architecture documentation, diagrams, standards, and technical recommendations for leadership and engineering teams. Based on general knowledge.</li><li>Assess new technologies and vendor solutions that align with long-term network and business strategy. Based on general knowledge.</li></ul>Required Qualifications<ul><li>7+ years of progressive network engineering and architecture experience, including enterprise-level design responsibility. Based on general knowledge.</li><li>Deep hands-on experience with Cisco networking technologies in complex enterprise environments. Based on general knowledge.</li><li>Strong expertise in routing, switching, BGP, OSPF, VLANs, QoS, VPNs, firewalls, wireless, and network segmentation. Based on general knowledge.</li><li>Experience designing highly available, secure, and scalable networks across on-premises and cloud-connected environments. Based on general knowledge.</li><li>Knowledge of network architecture considerations for AI, automation, and future-state digital transformation initiatives. Based on general knowledge.</li><li>Strong understanding of network security principles, access controls, and performance optimization. Based on general knowledge.</li><li>Proven ability to create architectural standards, lead network modernization, and support enterprise growth. Based on general knowledge.</li><li>Excellent communication skills with the ability to present technical strategy to both technical and non-technical stakeholders. Based on general knowledge.</li></ul>
2026-10-15T00:00:00Z

Systems Engineer

Addison, IL
remote
Permanent / Full Time
100000 - 125000 USD / Yearly
We are looking for a Systems Engineer to support and advance endpoint and cloud operations for a modern enterprise environment in Addison, Illinois. This role focuses on strengthening device management, improving security and compliance, and building reliable standards for Windows and mobile platforms. The position also contributes to day-to-day Azure infrastructure support, partnering with cross-functional teams to resolve issues and maintain stable services. Responsibilities: • Lead the administration and optimization of enterprise endpoint management across Windows, iOS, iPadOS, Android, and supported macOS devices. • Design and maintain Microsoft Intune configurations for device enrollment, policy enforcement, compliance controls, and application delivery. • Manage Windows Autopilot deployments to streamline provisioning and create a consistent onboarding experience for end users. • Oversee endpoint patching, software distribution, and lifecycle activities to keep devices secure, current, and aligned with company standards. • Use Tanium and related tools to improve visibility, automate routine operational tasks, and support endpoint health across the environment. • Act as an advanced escalation resource for endpoint-related incidents, working closely with infrastructure, cybersecurity, network, and service desk teams to drive resolution. • Create and refine technical standards, operational procedures, and automation practices that improve consistency and reduce manual effort. • Perform routine Azure infrastructure administration and basic resource provisioning by following established templates and approved support models. • Escalate complex cloud platform issues and architecture-related decisions to senior engineering resources when deeper specialization is required.
2026-10-27T00:00:00Z

4 results for Network Security Administrator in Hoffman Estates, IL